def normalize(f, from_, to):
if to.type == 'int':
if to.value < 0:
if from_.type != 'int':
return Node('binary_op',
op='-',
left=Node('binary_op',
op='-',
left=attr(f, 'Length', 'Int'),
right=to,
pseudo_type='Int'),
right=from_,
pseudo_type='Int')
else:
return Node('binary_op',
op='-',
left=attr(f, 'Length', 'Int'),
right=to_node(-to.value + from_.value),
pseudo_type='Int')
else:
if from_.type != 'int':
return Node('binary_op',
op='-',
left=to,
right=from_,
pseudo_type='Int')
else:
return to_node(to.value - from_.value)
else:
if from_.type == 'int' and from_.value == 0:
return to
else:
return Node('binary_op', op='-', left=to, right=from_, pseudo_type='Int')
def expand_slice(receiver, from_, to, pseudo_type=None):
return method_call(
method_call(
receiver,
'Take',
[Node('binary_op', op='-', left=attr(receiver, 'Length', 'Int'), right=to_node(-to.value), pseudo_type='Int') if to.type == 'int' and to.value < 0 else to],
pseudo_type=pseudo_type),
'Drop',
[Node('binary_op', op='-', left=attr(receiver, 'Length', 'Int'), right=to_node(-from_.value), pseudo_type='Int') if from_.type == 'int' and from_.value < 0 else from_],
pseudo_type=pseudo_type)
def as_expression(self):
return [
Node('_go_multi_assignment',
targets=[local('reader', 'Reader'), local('err', 'Error')],
values=[call(attr(local('bufio', 'GoLibrary'),
'NewReader', ['Function', 'IO', 'Reader']),
[attr(local('os', 'GoLibrary'), 'Stdin', 'IO')],
pseudo_type='Reader')]),
call(
attr(local('reader', 'Reader'),
'ReadString',
['Function', 'String', 'String']),
[to_node('\\n')],
pseudo_type='String')], None
def as_expression(self):
return [
Node('_go_multi_assignment',
targets=[local('reader', 'Reader'),
local('err', 'Error')],
values=[
call(attr(local('bufio', 'GoLibrary'), 'NewReader',
['Function', 'IO', 'Reader']),
[attr(local('os', 'GoLibrary'), 'Stdin', 'IO')],
pseudo_type='Reader')
]),
call(attr(local('reader', 'Reader'), 'ReadString',
['Function', 'String', 'String']), [to_node('\\n')],
pseudo_type='String')
], None
def transform_index(self, n, in_block=False, assignment=None):
if general_type(n.sequence.pseudo_type) == 'Tuple':
class_name, class_node = self.tuple_definitions.get(safe_serialize_type(n.sequence.pseudo_type), (None, None))
# we can have only literal int index of tuple because typecheck
if class_name:
return attr(local(n.sequence, class_name), camel_case(class_node.attrs[n.index.value].name), pseudo_type=n.pseudo_type)
return n
def split(f, delimiter, pseudo_type):
if delimiter.type == 'string' and (len(delimiter.value) == 1 or delimiter.value == '\\n'):
return method_call(f, 'Split', [Node('char', value=delimiter.value, pseudo_type='Char')], ['List', 'String'])
else:
return method_call(f,
'Split',
[Node('array', elements=[delimiter]), attr(typename('StringSplitOptions', 'Library'), 'None', 'CSharpNone')],
pseudo_type=['List', 'String'])
def object_len(l, _):
return attr(
method_call(
typename('Object', 'Type'),
'keys',
[l],
['List', l.pseudo_type[1]]),
'length',
'Int')
def transform_index(self, n, in_block=False, assignment=None):
if general_type(n.sequence.pseudo_type) == 'Tuple':
class_name, class_node = self.tuple_definitions.get(
safe_serialize_type(n.sequence.pseudo_type), (None, None))
# we can have only literal int index of tuple because typecheck
if class_name:
return attr(local(n.sequence, class_name),
camel_case(class_node.attrs[n.index.value].name),
pseudo_type=n.pseudo_type)
return n
def pad(f, count, fill, pseudo_type):
return method_call(
method_call(
f,
'PadLeft',
[Node('binary_op',
op='+',
left=Node('binary_op',
op='/',
left=Node('binary_op',
op='-',
left=count,
right=attr(f, 'Length', 'Int'),
pseudo_type='Int'),
right=to_node(2),
pseudo_type='Int'),
right=attr(f, 'Length', 'Int'),
pseudo_type='Int'),
fill],
pseudo_type='String'),
'PadRight',
[count, fill],
'String')
def empty(f, _):
return Node('comparison',
op='==',
left=attr(f, 'length', pseudo_type='Int'),
right=to_node(0),
pseudo_type='Boolean')
def object_len(l, _):
return attr(
method_call(typename('Object', 'Type'), 'keys', [l],
['List', l.pseudo_type[1]]), 'length', 'Int')
class PythonTranslator(ApiTranslator):
'''
Python api translator
The DSL is explained in the ApiTranslator docstring
'''
methods = {
'List': {
'@equivalent':
'list',
'push':
'#append',
'pop':
'#pop',
'length':
'len',
'insert':
'#insert',
'remove_at':
lambda receiver, index, _: Node(
'_py_del',
value=Node('index', sequence=receiver, index=index),
pseudo_type='Void'),
'remove':
'#remove',
'slice':
expand_slice,
'slice_from':
expand_slice,
'slice_to':
lambda receiver, to, pseudo_type: expand_slice(
receiver, None, to, pseudo_type),
'repeat':
to_op('*'),
'set_slice':
expand_set_slice,
'set_slice_from':
expand_set_slice,
'set_slice_to':
lambda receiver, to, value, pseudo_type: expand_set_slice(
receiver, None, to, value, pseudo_type),
'find':
'#index',
'join':
lambda receiver, delimiter, _: method_call(
delimiter, 'join', [receiver], pseudo_type='String'),
# map and filter have implicit or explicit return because otherwise they wouldnt type check
'map':
lambda receiver, f, pseudo_type: Node(
'_py_listcomp',
sequences=Node('for_sequence', sequence=receiver),
iterators=Node('for_iterator',
iterator=local(f.params[0].name, f.pseudo_type[
1])),
block=f.block[0].value,
test=None,
pseudo_type=['List', f.pseudo_type[2]]),
'filter':
lambda receiver, test, pseudo_type: Node(
'_py_listcomp',
sequences=Node('for_sequence', sequence=receiver),
iterators=Node('for_iterator',
iterator=local(test.params[0].name, test.
pseudo_type[1])),
block=local(test.params[0].name, test.pseudo_type[1]),
test=test.block[0].value,
pseudo_type=['List', test.pseudo_type[1]]),
'reduce':
lambda receiver, aggregator, initial, pseudo_type: Node(
'static_call',
receiver=local('functools', 'Library'),
message='reduce',
args=[aggregator, receiver, initial],
pseudo_type=pseudo_type),
'any?':
to_py_generatorcomp('any'),
'all?':
to_py_generatorcomp('all'),
'sort':
'#sort',
'present?':
lambda receiver, _: receiver,
'empty?':
lambda receiver, _: Node(
'unary_op', op='not', value=receiver, pseudo_type='Boolean'),
'contains?':
contains
},
'Dictionary': {
'@equivalent':
'dict',
'length':
'len',
'keys':
'#keys',
'values':
'#values',
'contains?':
contains,
'keys':
lambda receiver, pseudo_type: call(local(
'list', ['Function', 'Any', 'List']), [
method_call(receiver, 'keys', [],
['dict_keys', pseudo_type[1]])
],
pseudo_type=pseudo_type),
'values':
lambda receiver, pseudo_type: call(local(
'list', ['Function', 'Any', 'List']), [
method_call(receiver, 'values', [],
['dict_values', pseudo_type[1]])
],
pseudo_type=pseudo_type),
'present?':
lambda receiver, _: receiver,
'empty?':
lambda receiver, _: Node(
'unary_op', op='not', value=receiver, pseudo_type='Boolean')
},
'String': {
'@equivalent':
'str',
'substr':
expand_slice,
'substr_from':
expand_slice,
'length':
'len',
'substr_to':
lambda receiver, to, _: expand_slice(receiver, None, to, 'String'),
'find':
'#index',
'find_from':
'#index',
'count':
'#count',
'partition':
'#partition',
'split':
'#split',
'trim':
'#strip',
'format':
'#format',
'concat':
to_op('+'),
'c_format':
to_op('%'),
'center':
'#center',
'reversed':
'reversed',
'empty?':
lambda receiver, _: Node(
'unary_op', op='not', value=receiver, pseudo_type='Boolean'),
'present?':
lambda receiver, _: receiver,
'contains?':
lambda receiver, element, _: Node('_py_in',
sequence=receiver,
value=element,
pseudo_type='Boolean'),
'to_int':
'int',
'pad_left':
'#ljust',
'pad_right':
'#rjust'
},
'Int': {
'to_float': 'float(%{self})'
},
'Float': {
'to_int': 'int(%{self})'
},
'Set': {
'@equivalent':
'set',
'length':
'len',
'contains?':
contains,
'union':
to_op('|'),
'intersection':
to_op('-'),
'present?':
lambda receiver, _: receiver,
'empty?':
lambda receiver, _: Node(
'unary_op', op='not', value=receiver, pseudo_type='Boolean')
},
'Tuple': {
'@equivalent': 'tuple',
'length': 'len'
},
'Array': {
'@equivalent': 'tuple',
'length': 'len'
},
'Regexp': {
'@equivalent': '_sre.SRE_Pattern',
'match': '#match'
},
'RegexpMatch': {
'@equivalent': '_sre.SRE_Match',
'group': '#group',
'has_match': lambda receiver, _: receiver
}
}
functions = {
'global': {
'wat': lambda _: Node('block', block=[]),
'exit': lambda status, _: call('exit', [status])
},
'io': {
'display': 'print',
'read': 'input',
'write_file': WriteFile,
'read_file': ReadFile
},
'system': {
'args':
'sys.argv!',
'arg_count':
lambda _: call('len', [
attr(local('sys', 'Library'), 'argv', ['List', 'String'])
], 'Int'),
'index':
lambda value, _: Node('index',
sequence=attr(local('sys', 'Library'),
'argv', ['List', 'String']),
index=value,
pseudo_type='String')
},
'http': {
'get': 'requests.get',
'post': 'requests.post',
},
'math': {
'ln':
'math.log',
'log':
'math.log',
'tan':
'math.tan',
'sin':
'math.sin',
'cos':
'math.cos',
'pow':
lambda left, right, pseudo_type: Node('binary_op',
op='**',
left=left,
right=right,
pseudo_type=pseudo_type)
},
'regexp': {
'compile': 're.compile',
'escape': 're.escape'
}
}
dependencies = {
'Regexp': {
'@all': 're'
},
'List': {
'reduce': 'functools'
},
'http': {
'@all': 'requests'
},
'math': {
'@all': 'math'
},
'regexp': {
'@all': 're'
},
'system': {
'@all': 'sys'
}
}
class GolangTranslator(ApiTranslator):
'''
Go api translator
The DSL is explained in the ApiTranslator docstring
'''
methods = {
'List': {
'@equivalent':
'slice',
'push':
lambda receiver, element, _: assignment(
receiver,
call('append', [receiver, element], receiver.pseudo_type)),
'pop':
lambda receiver, _: assignment(
receiver,
Node('_go_slice_to',
sequence=receiver,
to=Node('binary_op',
op='-',
left=call('len', [receiver], 'Int'),
right=to_node(1),
pseudo_type='Int'),
pseudo_type=receiver.pseudo_type)),
'length':
'len',
'insert':
expand_insert,
'slice':
expand_slice,
'slice_from':
expand_slice,
'slice_to':
lambda receiver, to, pseudo_type: expand_slice(
receiver, None, to, pseudo_type),
'join':
'strings.Join(%{self}, %{0})',
'map':
expand_map,
'filter':
expand_filter,
'find':
Find,
'reduce':
expand_reduce,
'contains?':
ListContains,
'present?':
present,
'empty?':
empty
},
'Dictionary': {
'@equivalent': 'map',
'length': 'len',
'contains?': Contains,
'keys': DictKeys,
'values': DictValues,
'present?': present,
'empty?': empty
},
'String': {
'@equivalent':
'str',
'substr':
expand_slice,
'substr_from':
expand_slice,
'length':
'len',
'substr_to':
lambda receiver, to, _: expand_slice(
receiver, None, to, pseudo_type='String'),
'find':
'strings.Index(%{self}, %{0})',
'count':
'strings.Count(%{self}, %{0})',
'split':
'strings.Split(%{self}, %{0})',
'concat':
to_op('+'),
'contains?':
'strings.Contains(%{self}, %{0})',
'present?':
present,
'empty?':
empty,
'find_from':
lambda f, value, index, _: Node(
'binary_op',
op='+',
pseudo_type='Int',
left=index,
right=Node('static_call',
receiver=local('strings', 'Library'),
message='Index',
args=[
Node('_go_slice_from',
sequence=f,
from_=index,
pseudo_type='String'), value
],
pseudo_type='Int')),
'to_int':
Int
},
'Regexp': {
'@equivalent':
'Regexp',
'match':
lambda receiver, word, _: method_call(
receiver,
'FindAllSubmatch', [
Node('_go_bytes', value=word, pseudo_type='Bytes'),
to_node(-1)
],
pseudo_type='RegexpMatch')
},
'RegexpMatch': {
'@equivalent':
'R',
'group':
lambda receiver, index, _: Node('index',
sequence=receiver,
index=Node('binary_op',
op='+',
left=index,
right=to_node(1),
pseudo_type='Int'),
pseudo_type='String'),
'has_match':
lambda receiver, _: Node('comparison',
op='!=',
left=receiver,
right=Node('null', pseudo_type='None'),
pseudo_type='Boolean')
},
'Set': {
'@equivalent': 'map[bool]struct{}',
'length': 'len',
'contains?': Contains,
'present?': present,
'empty?': empty
},
'Tuple': {
'@equivalent': 'L',
'length':
lambda receiver, _: to_node(len(receiver.pseudo_type) - 1)
},
'Array': {
'@equivalent': 'int[]',
'length': lambda receiver, _: to_node(receiver.pseudo_type[2])
}
}
functions = {
'regexp': {
'compile': 'regexp.MustCompile',
'escape': 'regexp.QuoteMeta'
},
'io': {
'display': 'fmt.Println',
'read': Read,
'read_file': ReadFile,
'write_file': 'ioutil.WriteFile'
},
'math': {
'ln': 'math.Log',
'log': 'math.Log',
'tan': 'math.Tan',
'sin': 'math.Sin',
'cos': 'math.Cos',
'pow': 'math.Pow'
},
'system': {
'args':
'os.Args!',
'arg_count':
lambda _: call('len', [
attr(local('os', 'Library'), 'Args', ['List', 'String'])
], 'Int'),
'index':
lambda value, _: Node('index',
sequence=attr(local('os', 'Library'), 'Args',
['List', 'String']),
index=value,
pseudo_type='String')
}
}
dependencies = {
'regexp': {
'@all': 'regexp'
},
'io': {
'display': 'fmt',
'read': ['bufio', 'os'],
'read_file': ['io/ioutil'],
'write_file': ['io/ioutil']
},
'math': {
'@all': 'math'
},
'List': {
'join': 'strings'
},
'String': {
'find': 'strings',
'count': 'strings',
'split': 'strings',
'contains?': 'strings',
'find_from': 'strings',
'to_int': 'strconv'
},
'system': {
'@all': 'os'
}
}
errors = {}
def present(f, _):
return Node('comparison',
op='>',
left=attr(f, 'length', pseudo_type='Int'),
right=to_node(0),
pseudo_type='Boolean')
def transform_local(self, node, in_block=False, assignment=None):
if node.name in self.old_params:
return attr(self.l, camel_case(node.name)) # aware of tuple name updates
else:
return node
class CSharpTranslator(ApiTranslator):
'''
CSharp api translator
The DSL is explained in the ApiTranslator docstring
'''
methods = {
'List': {
'@equivalent':
'List',
'push':
'#Insert',
'pop':
lambda l, _: method_call(l,
'RemoveAt', [
Node('binary_op',
op='-',
left=attr(l, 'Length', 'Int'),
right=to_node(1),
pseudo_type='Int')
],
pseudo_type='Void'),
'insert':
'#Insert',
'remove_at':
'#RemoveAt',
'remove':
'#Remove',
'length':
'.Length!',
'slice':
expand_slice,
'slice_from':
lambda l, from_, pseudo_type: method_call(
l,
'Drop', [
Node('binary_op',
op='-',
left=attr(l, 'Length', 'Int'),
right=to_node(-from_.value),
pseudo_type='Int')
if from_.type == 'int' and from_.value < 0 else from_
],
pseudo_type=pseudo_type),
'slice_to':
lambda l, to, pseudo_type: method_call(
l,
'Take', [
Node('binary_op',
op='-',
left=attr(l, 'Length', 'Int'),
right=to_node(-to.value),
pseudo_type='Int')
if to.type == 'int' and to.value < 0 else to
],
pseudo_type=pseudo_type),
'slice_':
'#Slice',
'join':
lambda l, delimiter, _: method_call(delimiter, 'Join', [receiver],
'String'),
'map':
linq('Select'),
'filter':
linq('Where'),
'reduce':
linq('Aggregate', False, swap=True),
'all?':
linq('All'),
'any?':
linq('Any'),
'concat':
'#AddRange',
'present?':
'#Any',
'empty?':
empty,
'find':
'#IndexOf',
'contains?':
'#Contains',
'sort':
'#Sort'
},
'Dictionary': {
'@equivalent': 'Dictionary',
'length': '.Length!',
'keys': '#Keys',
'values': '#Values',
'contains?': '#Contains',
'present?': '#Any',
'empty?': empty
},
'String': {
'@equivalent':
'String',
'length':
'.Length!',
'substr':
lambda f, from_, to, pseudo_type: method_call(
f, 'Substring', [from_, normalize(f, from_, to)], pseudo_type),
'substr_from':
'#Substring',
'substr_to':
lambda f, to, pseudo_type: method_call(f, 'Substring', [
to_node(0), normalize(f, to_node(0), to)
], pseudo_type),
'find_from':
'#IndexOf',
'find':
'#IndexOf',
'count':
lambda f, element, pseudo_type: method_call(
f,
'Count', [
Node('anonymous_function',
params=[local('sub', 'String')],
block=[
Node('comparison',
op='==',
left=local('sub', 'String'),
right=local('s', 'String'),
pseudo_type='Boolean')
],
return_type='Boolean',
pseudo_type=['Function', 'String', 'Boolean'])
],
pseudo_type='Int'),
'concat':
to_op('+'),
'split':
split,
'trim':
'#Trim',
'center':
pad,
'present?':
lambda f, _: Node('comparison',
op='!=',
left=attr(f, 'Length', 'Int'),
right=to_node(0),
pseudo_type='Boolean'),
'empty?':
lambda f, _: Node('comparison',
op='==',
left=attr(f, 'Length', 'Int'),
right=to_node(0),
pseudo_type='Boolean'),
'contains?':
'#Contains',
'to_int':
'Int32.Parse(%{self})',
'pad_left':
'#PadLeft',
'pad_right':
'#PadRight'
},
'Set': {
'@equivalent': 'HashSet',
'length': '.Length!',
'contains?': '#Contains',
'union': '#Union',
'intersection': '#Intersection',
'present?': '#Any',
'empty?': empty
},
'Regexp': {
'@equivalent': 'Regexp',
'match': '#match'
},
'RegexpMatch': {
'@equivalent':
'RegexpMatch',
'group':
lambda receiver, index, _: Node(
'index',
sequence=attr(
Node('index',
sequence=attr(receiver, 'Groups',
['List', 'CSharpRegexGroup']),
index=to_node(1 + index.value)
if index.type == 'int' else Node('binary_op',
op='+',
left=to_node(1),
right=index,
pseudo_type='Int'),
pseudo_type='CSharpRegexGroup'), 'Captures',
['List', 'RegexpMatch']),
index=to_node(0),
pseudo_type='RegexpMatch'),
'has_match':
'.Success!'
},
'Array': {
'@equivalent': 'Any[]',
'length': lambda receiver, _: to_node(receiver.pseudo_type[2])
},
'Tuple': {
'@equivalent': 'Tuple',
'length': lambda _, pseudo_type: to_node(len(pseudo_type) - 1)
}
}
functions = {
'io': {
'display': Display,
'read': 'Console.ReadLine',
'read_file': 'File.ReadAllText',
'write_file': 'File.WriteAllText'
},
'math': {
'ln': 'Math.Log',
'log': 'Math.Log',
'tan': 'Math.Tan',
'sin': 'Math.Sin',
'cos': 'Math.Cos',
'pow': 'Math.Pow'
},
'http': {},
'system': {
'args':
lambda _: local('args', ['List', 'String']),
'index':
lambda index, _: Node('index',
sequence=local('args', ['List', 'String']),
index=to_node(index.value - 1) if index.type
== 'int' else Node('binary_op',
op='-',
left=index,
right=to_node(1),
pseudo_type='Int'),
pseudo_type='String'),
'arg_count':
lambda _: Node('binary_op',
op='+',
left=attr(local('args', ['List', 'String']),
'Length', 'Int'),
right=to_node(1),
pseudo_type='Int')
},
'regexp': {
'compile':
lambda value, _: Node('new_instance',
class_name='Regex',
args=[value],
pseudo_type='Regexp'),
'escape':
'Regex.Escape'
}
}
dependencies = {
'List': {
'@all': 'System.Collections.Generic',
'map': 'System.Linq',
'filter': 'System.Linq',
'any?': 'System.Linq',
'all?': 'System.Linq',
'reduce': 'System.Linq'
},
'String': {
'@all': 'System.Text'
},
'Dictionary': {
'@all': 'System.Collections.Generic',
},
'io': {
'read_file': 'System.IO',
'write_file': 'System.IO'
},
'regexp': {
'@all': 'System.Text.RegularExpressions'
}
}
class JSTranslator(ApiTranslator):
'''
JS api translator
The DSL is explained in the ApiTranslator docstring
'''
methods = {
'List': {
'@equivalent':
'Array',
'push':
'#push',
'pop':
'#pop',
'length':
'.length!',
'insert':
'#splice(%{self}, 0, %{0})',
'remove_at':
lambda receiver, index, _: method_call(
receiver,
'splice', [
index,
to_node(index.value + 1)
if index.type == 'int' else Node('binary_op',
op='+',
left=index,
right=to_node(1),
pseudo_type='Int')
],
pseudo_type='Void'),
'remove':
'_.pull(%{self}, %{0})',
'slice':
'#slice',
'slice_from':
'#slice',
'slice_to':
'#slice(0, %{0})',
'map':
'_.map(%{self}, %{0})',
'filter':
'_.filter(%{self}, %{0})',
'reduce':
'_.reduce(%{self}, %{0}, %{1})',
'any?':
'_.any(%{self}, %{0})',
'all?':
'_.all(%{self}, %{0})',
'sort':
'#sort',
'empty?':
empty,
'present?':
present,
'find':
'#indexOf',
'contains?':
'_.contains(%{self}, %{0})'
},
'Dictionary': {
'@equivalent': 'Object',
'length': object_len,
'keys': 'Object.keys(%{self})',
'values': 'Object.values(%{self})',
'contains?': '#hasOwnProperty',
'present?': present,
'empty?': empty
},
'String': {
'@equivalent':
'String',
'substr':
'#slice',
'substr_from':
'#slice',
'length':
'.length!',
'substr_to':
'#slice(0, %{0})',
'find':
'#search',
'find_from':
lambda f, value, index, _: Node(
'binary_op',
op='+',
pseudo_type='Int',
left=index,
right=method_call(method_call(f, 'slice', [index], 'String'),
'search', [value], 'Int')),
'count':
lambda f, count, _: attr(
method_call(LODASH, 'where', [count], ['List', 'String']),
'length', 'Int'),
'concat':
to_op('+'),
'partition':
lambda f, delimiter, _: Node(
'index',
sequence=method_call(LODASH, 'partition', [delimiter], 'String'
),
index=to_node(1),
pseudo_type=['Tuple', 'String', 'String', 'String']),
'split':
'#split',
'trim':
'#trim',
'reversed':
lambda f, _: method_call(
method_call(
method_call(f, 'split', [to_node('')], ['List', 'String']),
'reverse', [], ['List', 'String']), 'join', [to_node('')],
'String'),
'center':
'_.pad(%{self}, %{0}, %{1})',
'present?':
lambda f, _: f,
'empty?':
lambda f, _: Node(
'unary_op', op='not', value=f, pseudo_type='Boolean'),
'contains?':
'_.contains(%{self}, %{0})',
'to_int':
'parseInt',
'pad_left':
'_.padLeft(%{self}, %{0}, %{1})',
'pad_right':
'_.padRight(%{self}, %{0}, %{1})'
},
'Tuple': {
'@equivalent': 'Array',
'length': '.length!'
},
'Array': {
'@equivalent': 'Array',
'length': '.length!'
},
'Set': {
'@equivalent': 'Object',
'length': object_len,
'contains?': '_.contains(%{self}, %{0})',
'intersection': '_.intersection(%{self}, %{0})',
'union': '_.union(%{self}, %{0})',
'present?': present,
'empty?': empty
},
'RegexpMatch': {
'@equivalent':
'Array',
'group':
lambda receiver, index, _: Node('index',
sequence=receiver,
index=to_node(1 + index.value)
if index.type == 'int' else Node(
'binary_op',
op='+',
left=to_node(1),
right=index,
pseudo_type='Int'),
pseudo_type='String'),
'has_match':
lambda receiver, _: receiver
},
'Regexp': {
'@equivalent': 'Regexp',
'match': '#exec'
}
}
functions = {
'global': {
'wat': lambda _: Node('block', block=[]),
'exit': lambda status, _: call('exit', [status])
},
'system': {
'args':
'process.argv!',
'arg_count':
lambda _: Node('binary_op',
op='-',
left=attr(
attr(local('process', 'Library'), 'argv',
['List', 'String']), 'length', 'Int'),
right=to_node(1),
pseudo_type='Int'),
'index':
lambda value, _: Node('index',
sequence=attr(local('process', 'Library'),
'argv', ['List', 'String']),
index=to_node(value.value + 1) if value.type
== 'int' else Node('binary_op',
op='+',
left=value,
right=value,
pseudo_type='Int'),
pseudo_type='String')
},
'io': {
'display': 'console.log',
'read_file': "fs.readFileSync(%{0}, 'utf8')",
'write_file': "fs.writeFileSync(%{0}, %{1}, 'utf8')",
},
'math': {
'ln': 'Math.log',
'log': 'Math.log',
'tan': 'Math.tan',
'sin': 'Math.sin',
'cos': 'Math.cos',
'pow': 'Math.pow'
},
'regexp': {
'compile':
lambda value, _: Node('new_instance',
class_name='RegExp',
args=[value],
pseudo_type='Regexp'),
'escape':
'_.escapeRegExp'
}
}
js_dependencies = {'_': 'lodash'}
dependencies = {
'io': {
'read_file': 'fs',
'write_file': 'fs'
},
'regexp': {
'escape': 'lodash'
}
}
def transform_local(self, node, in_block=False, assignment=None):
if node.name in self.old_params:
return attr(self.l,
camel_case(node.name)) # aware of tuple name updates
else:
return node